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Key to Genera of Powdery Mildew Fungi |
Appendages coiled or hooked at tip --- Uncinula
Appendages simple and straight with bulb-like base --- Phyllactinia |
Appendages branching dichotomously at tip
Cleistothecium contains a single ascus --- Podosphaera
Cleistothecium contains several asci --- Microsphaera |
Appendages simple or irregularly branched, often entwined
Cleistothecium contains a single ascus --- Sphaerotheca
Cleistothecium contains several asci --- Erysiphe |
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Illustrated Key to Genera of Powdery Mildew Fungi
Generalized Life Cycle of Powdery Mildews
Powdery Mildew Data Recording Sheet
